EP2108472A4 - Poudre de fer à compressibilité élevée, poudre de fer la comprenant pour un noyau à poudre de fer, et noyau à poudre de fer - Google Patents

Poudre de fer à compressibilité élevée, poudre de fer la comprenant pour un noyau à poudre de fer, et noyau à poudre de fer

Info

Publication number
EP2108472A4
EP2108472A4 EP07708007A EP07708007A EP2108472A4 EP 2108472 A4 EP2108472 A4 EP 2108472A4 EP 07708007 A EP07708007 A EP 07708007A EP 07708007 A EP07708007 A EP 07708007A EP 2108472 A4 EP2108472 A4 EP 2108472A4
Authority
EP
European Patent Office
Prior art keywords
iron powder
dust core
same
compressibility
dust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07708007A
Other languages
German (de)
English (en)
Other versions
EP2108472A1 (fr
Inventor
Toshio Maetani
Satoshi Uenosono
Masateru Ueta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP2108472A1 publication Critical patent/EP2108472A1/fr
Publication of EP2108472A4 publication Critical patent/EP2108472A4/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
    • C22C33/0264—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5%
    • C22C33/0271—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements the maximum content of each alloying element not exceeding 5% with only C, Mn, Si, P, S, As as alloying elements, e.g. carbon steel
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
    • H01F1/22—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
    • H01F1/24—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated
    • H01F1/26—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together the particles being insulated by macromolecular organic substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Powder Metallurgy (AREA)
  • Soft Magnetic Materials (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
EP07708007A 2007-01-30 2007-01-30 Poudre de fer à compressibilité élevée, poudre de fer la comprenant pour un noyau à poudre de fer, et noyau à poudre de fer Withdrawn EP2108472A4 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/051879 WO2008093430A1 (fr) 2007-01-30 2007-01-30 Poudre de fer à compressibilité élevée, poudre de fer la comprenant pour un noyau à poudre de fer, et noyau à poudre de fer

Publications (2)

Publication Number Publication Date
EP2108472A1 EP2108472A1 (fr) 2009-10-14
EP2108472A4 true EP2108472A4 (fr) 2011-05-18

Family

ID=39673749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07708007A Withdrawn EP2108472A4 (fr) 2007-01-30 2007-01-30 Poudre de fer à compressibilité élevée, poudre de fer la comprenant pour un noyau à poudre de fer, et noyau à poudre de fer

Country Status (5)

Country Link
US (1) US20120048063A1 (fr)
EP (1) EP2108472A4 (fr)
CN (1) CN101534979B (fr)
CA (1) CA2667843C (fr)
WO (1) WO2008093430A1 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101615465B (zh) * 2008-05-30 2012-10-17 株式会社日立制作所 压粉磁体用软磁性粉末和使用其的压粉磁体
EP2492031B1 (fr) * 2009-12-25 2017-10-18 Tamura Corporation Noyau de poudre et son procédé de production
JP2011216745A (ja) * 2010-03-31 2011-10-27 Hitachi Powdered Metals Co Ltd 圧粉磁心およびその製造方法
CN102091788B (zh) * 2010-11-23 2013-07-17 北京科技大学 一种生产铁基弥散强化材料的方法
JP5703749B2 (ja) * 2010-12-27 2015-04-22 Tdk株式会社 圧粉コア
CN103636101A (zh) * 2011-06-30 2014-03-12 佩西蒙技术公司 结构化的磁性材料
JP6052960B2 (ja) * 2012-01-12 2016-12-27 株式会社神戸製鋼所 軟磁性鉄基粉末の製造方法
JP5565453B2 (ja) * 2012-12-19 2014-08-06 Ｊｆｅスチール株式会社 圧粉磁芯用鉄粉
WO2014171105A1 (fr) * 2013-04-19 2014-10-23 Ｊｆｅスチール株式会社 Poudre de fer pour noyau à poudre de fer, et poudre de fer portant une isolation thermique pour noyau à poudre de fer
JP5929819B2 (ja) * 2013-04-19 2016-06-08 Ｊｆｅスチール株式会社 圧粉磁芯用鉄粉
US20170018344A1 (en) * 2014-04-02 2017-01-19 Jfe Steel Corporation Iron powder for iron powder cores and method for selecting iron powder for iron powder cores
SE541269C2 (en) * 2015-09-18 2019-05-28 Jfe Steel Corp Mixed powder for powder metallurgy, sintered body, and method of manufacturing sintered body
CN105895301B (zh) * 2016-05-28 2017-12-29 深圳市固电电子有限公司 一种铁粉芯电感及其制备方法
JP6745447B2 (ja) 2017-01-12 2020-08-26 株式会社村田製作所 磁性体粒子、圧粉磁心、およびコイル部品
US10607757B1 (en) * 2017-06-30 2020-03-31 Tdk Corporation Production method of soft magnetic metal powder
JP6998552B2 (ja) * 2017-07-06 2022-02-04 パナソニックＩｐマネジメント株式会社 圧粉磁心
US20190013129A1 (en) * 2017-07-06 2019-01-10 Panasonic Intellectual Property Management Co., Ltd. Dust core
EP3936256A4 (fr) 2019-03-06 2022-04-27 JFE Steel Corporation Poudre à base de fer pour noyau magnétique en poudre, et noyau magnétique en poudre
WO2020218332A1 (fr) * 2019-04-25 2020-10-29 Tdk株式会社 Poudre d'alliage magnétique doux, noyau magnétique en comprimé cru, composant magnétique et dispositif électronique
JP7036216B2 (ja) 2019-05-24 2022-03-15 Ｊｆｅスチール株式会社 鉄基合金焼結体及び粉末冶金用鉄基混合粉
KR20230008987A (ko) * 2021-07-08 2023-01-17 현대자동차주식회사 무선충전 시스템용 자성체 및 그 제조방법
CN114267511A (zh) * 2021-12-31 2022-04-01 苏州迈力泰精密部件有限公司 一种螺纹比例阀软磁衔铁及其制备工艺
WO2025203815A1 (fr) * 2024-03-27 2025-10-02 Ｊｆｅスチール株式会社 Poudre magnétique douce à base de fer pour noyau à poudre de fer, poudre magnétique douce de revêtement d'isolation pour noyau à poudre de fer, et poudre mélangée pour noyau à poudre de fer
JPWO2025203814A1 (fr) * 2024-03-27 2025-10-02

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030070508A1 (en) * 2001-04-20 2003-04-17 Kawasaki Steel Corporation Highly compressible iron powder
JP2005187918A (ja) * 2003-12-26 2005-07-14 Jfe Steel Kk 圧粉磁心用絶縁被覆鉄粉

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61223101A (ja) * 1985-03-28 1986-10-03 Kobe Steel Ltd 圧粉磁性体用アトマイズ鉄粉
JPH08921B2 (ja) * 1992-06-19 1996-01-10 株式会社神戸製鋼所 圧縮性と磁気特性に優れた粉末冶金用純鉄粉
JP2001102207A (ja) * 1999-09-30 2001-04-13 Tdk Corp 圧粉磁心の製造方法
JP2002121601A (ja) 2000-10-16 2002-04-26 Aisin Seiki Co Ltd 軟磁性金属粉末粒子、軟磁性金属粉末粒子の処理方法、軟磁性成形体、軟磁性成形体の製造方法
JP2002275505A (ja) 2001-03-21 2002-09-25 Aisin Seiki Co Ltd 軟磁性成形体の製造方法及び軟磁性成形体
JP2003303711A (ja) 2001-03-27 2003-10-24 Jfe Steel Kk 鉄基粉末およびこれを用いた圧粉磁心ならびに鉄基粉末の製造方法
JP2006183121A (ja) * 2004-12-28 2006-07-13 Jfe Steel Kk 圧粉磁芯用鉄基粉末およびそれを用いた圧粉磁芯

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030070508A1 (en) * 2001-04-20 2003-04-17 Kawasaki Steel Corporation Highly compressible iron powder
JP2005187918A (ja) * 2003-12-26 2005-07-14 Jfe Steel Kk 圧粉磁心用絶縁被覆鉄粉

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2008093430A1 *

Also Published As

Publication number Publication date
CA2667843A1 (fr) 2008-08-07
US20120048063A1 (en) 2012-03-01
CN101534979B (zh) 2011-03-09
EP2108472A1 (fr) 2009-10-14
CN101534979A (zh) 2009-09-16
WO2008093430A1 (fr) 2008-08-07
CA2667843C (fr) 2012-04-10

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 20090316

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RBV Designated contracting states (corrected)

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DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20110419

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Effective date: 20131126